# File lib/mongo_mapper/connection.rb, line 53
    def config_for_environment(environment)
      env = config[environment.to_s] || {}
      return env if env['uri'].blank?

      uri = URI.parse(env['uri'])
      raise InvalidScheme.new('must be mongodb') unless uri.scheme == 'mongodb'
      {
        'host'     => uri.host,
        'port'     => uri.port,
        'database' => uri.path.gsub(/^\//, ''),
        'username' => uri.user,
        'password' => uri.password,
      }
    end